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EnclosingMethodAttribute.javaAPI DocGlassfish v2 API5287Thu Mar 02 11:51:14 GMT 2006oracle.toplink.libraries.asm.attrs

EnclosingMethodAttribute

public class EnclosingMethodAttribute extends Attribute
The EnclosingMethod attribute is an optional fixed-length attribute in the attributes table of the ClassFile structure. A class must have an EnclosingMethod attribute if and only if it is a local class or an anonymous class. A class may have no more than one EnclosingMethod attribute. The EnclosingMethod attribute has the following format: 
EnclosingMethod_attribute {
u2 attribute_name_index;
u4 attribute_length;
u2 class_index
u2 method_index;
}
The items of the EnclosingMethod_attribute structure are as follows:
attribute_name_index
The value of the attribute_name_index item must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_Utf8_info structure representing the string "EnclosingMethod".
attribute_length
The value of the attribute_length item is four.
class_index
The value of the class_index item must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_Class_info structure representing the innermost class that encloses the declaration of the current class.
method_index
If the current class is not immediately enclosed by a method or constructor, then the value of the method_index item must be zero. Otherwise, the value of the method_index item must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_NameAndType_info structure representing a the name and type of a method in the class referenced by the class_index attribute above. It is the responsibility of the Java compiler to ensure that the method identified via the method_index is indeed the closest lexically enclosing method of the class that contains this EnclosingMethod attribute.
author
Eugene Kuleshov

Fields Summary
public String
owner
public String
name
public String
desc
Constructors Summary
public EnclosingMethodAttribute()

    super("EnclosingMethod");
public EnclosingMethodAttribute(String owner, String name, String desc)

    this();
    this.owner = owner;
    this.name = name;
    this.desc = desc;
Methods Summary
protected oracle.toplink.libraries.asm.Attributeread(oracle.toplink.libraries.asm.ClassReader cr, int off, int len, char[] buf, int codeOff, oracle.toplink.libraries.asm.Label[] labels)

    // CONSTANT_Class_info
    String o = cr.readClass( off, buf);
    // CONSTANT_NameAndType_info (skip CONSTANT_NameAndType tag)
    int index = cr.getItem(cr.readUnsignedShort(off + 2));
    String n = null;
    String d = null;
    if( index!=0) {
	    n = cr.readUTF8(index, buf);
	    d = cr.readUTF8(index + 2, buf);
    }
    return new EnclosingMethodAttribute( o, n, d);
public java.lang.StringtoString()

    return new StringBuffer("owner:").append( owner)
      .append(" name:").append(name)
      .append(" desc:").append(desc).toString();
protected oracle.toplink.libraries.asm.ByteVectorwrite(oracle.toplink.libraries.asm.ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals)

    return new ByteVector().putShort(cw.newClass(owner))
      .putShort( name==null || desc==null ? 0 : cw.newNameType(name, desc));